diff options
Diffstat (limited to 'src/arch/arm/insts')
| -rw-r--r-- | src/arch/arm/insts/pseudo.cc | 10 | ||||
| -rw-r--r-- | src/arch/arm/insts/pseudo.hh | 15 |
2 files changed, 25 insertions, 0 deletions
diff --git a/src/arch/arm/insts/pseudo.cc b/src/arch/arm/insts/pseudo.cc index e2504d61e..2e8c3f10d 100644 --- a/src/arch/arm/insts/pseudo.cc +++ b/src/arch/arm/insts/pseudo.cc @@ -249,3 +249,13 @@ McrMrcImplDefined::generateDisassembly(Addr pc, { return csprintf("%-10s (implementation defined)", mnemonic); } + +IllegalExecInst::IllegalExecInst(ExtMachInst _machInst) + : ArmStaticInst("Illegal Execution", _machInst, No_OpClass) +{} + +Fault +IllegalExecInst::execute(ExecContext *xc, Trace::InstRecord *traceData) const +{ + return std::make_shared<IllegalInstSetStateFault>(); +} diff --git a/src/arch/arm/insts/pseudo.hh b/src/arch/arm/insts/pseudo.hh index ececbbb86..9065c6281 100644 --- a/src/arch/arm/insts/pseudo.hh +++ b/src/arch/arm/insts/pseudo.hh @@ -161,4 +161,19 @@ class McrMrcImplDefined : public McrMrcMiscInst }; +/** + * This class is modelling instructions which are not going to be + * executed since they are flagged as Illegal Execution Instructions + * (PSTATE.IL = 1 or CPSR.IL = 1). + * The sole purpose of this instruction is to generate an appropriate + * fault when executed. + */ +class IllegalExecInst : public ArmStaticInst +{ + public: + IllegalExecInst(ExtMachInst _machInst); + + Fault execute(ExecContext *xc, Trace::InstRecord *traceData) const; +}; + #endif |